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Arterial Bypass (arterial + bypass)

Distribution by Scientific Domains

Medical Sciences	100%

Selected Abstracts

Use of Hand Held Doppler to identify venous tributaries in in situ vein arterial bypass

ANZ JOURNAL OF SURGERY, Issue 9 2009
Amjid A. Riaz
Abstract Background:, It very important to reduce the morbidity associated with arterial bypass surgery by minimizing the length of incision used in infrainguinal bypass surgery using in situ vein as a conduit. This paper describes a quick and less invasive method of identifying the location of vein tributaries using Hand Held Doppler in arterial bypass surgery with local cut down instead of extensive exposure. Methods:, The technique was used in 19 consecutive procedures. Fourteen grafts were subsequently evaluated for completeness of tributary ligation using duplex scanning. Results:, A mean of 2.5 tributaries were identified per limb. Thus, there were 35 patent tributaries in our cohort of 14 patients. None was of clinical significance. Four occluded spontaneously during the period of study. Wound length was reduced by 30,60% depending on the total length of the incision. Conclusion:, This technique is an effective, cheap and simple means of performing bypass surgery in high-risk patients (with significant comorbidity and a high ASA score) and also reducing inherent complications associated with the length of the incision. [source]

Use of a disposable tunneller for arterial bypass to the foot

ANZ JOURNAL OF SURGERY, Issue 8 2004
C. Barry Beiles
Background: Performance of pedal artery bypass for limb salvage is well described. A tunneller is required to place the vein graft subcutaneously, but a suitable instrument to achieve this is not always available. Methods: A disposable catheter passer used for ventriculo-peritoneal shunts is ideally suited to this purpose, and the technique of its use is described. Conclusions: Placement of the vein graft in a subcutaneous tunnel with minimal trauma is easily achieved using this instrument. [source]

Percutaneous ex-vivo femoral arterial bypass: A novel approach for treatment of acute limb ischemia as a complication of femoral arterial catheterization

CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS, Issue 3 2006
William M. Merhi DO
Abstract This report describes the use of a percutaneous ex-vivo femoral arterial bypass in three patients with acute lower extremity ischemia that occurred as a complication of femoral artery catheterization. Utilizing standard equipment and techniques, a percutaneous ex-vivo femoral artery bypass can restore antegrade flow to the ischemic limb in patients with impaired aorto-iliac inflow circulation, which may arise from iatrogenic dissection or the need for large in-dwelling sheaths required for hemodynamic support. This technique is considered a temporizing measure when conventional therapies are not possible. Contrast angiography is recommended to localize and define the cause of limb ischemia, and to permit safe placement of vascular sheaths in the "donor and recipient" arteries. © 2006 Wiley-Liss, Inc. [source]

Internal Thoracic Arterial Grafts Evaluation by Multislice CT Scan:

JOURNAL OF CARDIAC SURGERY, Issue 6 2004
A Preliminary Study
The aim of this study is to evaluate the multidetector multislice CT Scan (MCTS) as a means of postoperative evaluation of ITA coronary artery bypass grafts. Methods: Twenty-eight patients having been operated on for coronary artery bypass with ITA during a 6-months period, benefited, 7 days after surgery, from a patency and anastomotic site control of ITA with a MCTS associated with cardiac gating (Light Speed, General Electric, USA). Results: Internal thoracic artery bypasses are visualized perfectly on all their courses, with possibility of 3D reconstructions, showing the relationship between cardiac cavities and the arterial bypasses. The anastomotic site on the LAD was, in selected cases, perfectly visualized. Sequential bypasses with left ITA are well visualized as well as T or Y right-to-left ITA grafts. However, surgical clips create some image artefacts. Conclusions: The postoperative control of ITAs are possible by MCTS with a satisfactory resolution. This makes it possible to check the patency of ITAs, their course on the heart surface, and the location and quality of anastomosis with a noninvasive reproductive method. [source]